NeoPixel powered by Molex - Questions

[dotpan]

I'm considering a project of doing custom case lighting using a FadeCandy (connected to internal 4pin usb to the mother board) and powered by Molex (off the computers PSU) using just the 5v from the Molex.. I'm rather new to this stuff and want to make sure I don't damage anything and do this right, I'd love any input I could get.

Details:
2M NeoPixel 60LED/Meter strip.
1 FadeCandy - Connected via internal 4pin USB adapter to motherboard
1 4-pin AT/ATX/IDE power cable - To make the wiring of power easier.

I know I should get a capacitor too, but I'm not sure how big (could someone link to a product).

[Franklin97355]

Take a look at this Neopixel Uberguide before you get started. This should work for you.

[dotpan]

Excellent thank you.

[dotpan]

Being that I'm exceptionally new at this. If I were to wire all of this, what kind of wire would you advise to go from the 4 pin (only using the 5v and Grnd lines) to the NeoPixel strip? Also, could I use the capasitor in relation with that 4pin adapter and if so, how would I solder it/put it inline? Sorry for the 20 questions, just don't want to burn out $100 project by not knowing.

[Franklin97355]

I would solder the cap on the plug you use to connect to the PC power supply. Which controller do you plan to use?

[dotpan]

I plan to use the FadeCandy as the controller (Just ordered it).

Essentially I plan to run a 4pin mother board to USB-female plug and a short usb male to micro usb male from that to the FadeCandy, then solder in the data line for the NeoPixel into the FadeCandy. Thne I'll use the Molex to 4pin AT/ATX adapter to give me an easier way to use the 5v channel from Molex-ATX (Red) that is coming from my computers Power Supply to power the 2M of NeoPixels.